Connecting structure of motor support and cover plate and motor

Abstract

The invention provides a connecting structure of a motor support and a cover plate and a motor, at least one first clamping groove is formed in the edge of the cover plate, and at least one second locking piece is arranged on the bottom face, close to the motor support, of the cover plate; a first locking piece matched with the first clamping groove is arranged on the end face, close to the cover plate, of the motor support, and a second clamping groove matched with the second locking piece is formed in the top face, close to the cover plate, of the tooth portion of the motor support. The connection state between the motor support and the cover plate comprises a loosening state and a locking state, when the cover plate rotates in the first direction, the first locking piece is matched with the first clamping groove, the second locking piece is clamped into the second clamping groove, the motor support and the cover plate are in the locking state, and the cover plate is fixed to the motor support. The invention provides a connecting structure of a motor bracket and a cover plate and a motor, and can solve the problem that the motor bracket or the cover plate is easy to collapse and damage at a matching position due to the adoption of a traditional vertical extrusion embedded buckle connection mode in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a connection structure between a motor bracket and a cover plate, and a motor. Background Art

[0002] The motor bracket is a key support component in the motor structure, primarily used to secure the motor and ensure stable operation within the device or system. The motor cover is also a crucial component of the motor housing, enclosing the motor's internal structure and providing protection, heat dissipation, and mechanical support.

[0003] The connection between the motor bracket and the cover is a key aspect of the motor's mechanical design. The connection method directly impacts the motor's overall rigidity, sealing performance, heat dissipation efficiency, and ease of maintenance. In the prior art, various methods exist for connecting the motor bracket and the cover, including bolts, snap-fit ​​connections, and welding. Among these, snap-fit ​​connections are a common method for connecting the motor bracket and the cover.

[0004] like Figure 1 The figure shows a conventional connection method between a motor bracket and a cover plate. A snap-fitting element 01 is designed on the cover plate, and a corresponding notch slot 02 is designed on the motor bracket. During assembly, the snap-fitting element 01 of the cover plate is snapped into the notch slot 02 to achieve a snap-fit ​​connection between the two. This assembly method involves vertically squeezing the bracket and cover plate at their mating locations, allowing the snap-fitting element 01 to fit into the notch slot 02. This connection method places relatively high demands on the strength of the mating locations between the motor bracket and the cover plate. Strength considerations are required for the mating surfaces of the bracket's outer wall and the cover plate. Therefore, both the bracket and the cover plate require relatively thick walls to ensure a reliable fit. If the motor's overall dimensions are small, there is not much space on the outer walls of the bracket and the cover, and a thin design is required. In this case, the thickness of the motor bracket and the cover cannot be guaranteed, and the corresponding assembly space of the motor bracket and the cover will be limited. When this traditional vertical extrusion embedded snap connection method is used, it is easy to cause the motor bracket or the cover to collapse and break in the mating position, resulting in failure of the connection between the motor bracket and the cover, affecting the performance of the motor. Summary of the Invention

[0005] The purpose of the present invention is to provide a connection structure between a motor bracket and a cover plate and a motor, so as to solve the problem in the prior art that the traditional vertical extrusion embedded snap connection method is used, which easily causes the motor bracket or the cover plate to collapse and break in the mating position, resulting in failure of the connection between the motor bracket and the cover plate, and affecting the performance of the motor.

[0006] To achieve the above-mentioned object, the present invention provides a connection structure between a motor bracket and a cover plate, wherein at least one first slot is formed on an edge of the cover plate, and at least one second locking member is provided on a bottom surface of the cover plate near the motor bracket; a first locking member matching the first slot is provided on an end surface of the motor bracket near the cover plate, and a second slot matching the second locking member is formed on a top surface of the motor bracket near the cover plate; the connection state between the motor bracket and the cover plate includes a loose state and a locked state, when the cover plate is closed on the motor bracket, the first locking member is located in the first slot, and the second locking member is located in a gap between two adjacent teeth of the motor bracket, and the motor bracket and the cover plate are in a loose state; when the motor bracket and the cover plate are in the loose state, when the cover plate is rotated in a first direction, the first locking member cooperates with the first slot, and the second locking member is engaged in the second slot, and the motor bracket and the cover plate are in a locked state, thereby fixing the cover plate on the motor bracket.

[0007] Furthermore, a positioning groove is provided on the cover plate, and a positioning piece matching the positioning groove is provided on the end surface of the motor bracket close to the cover plate. When the motor bracket is connected to the cover plate, the positioning piece is inserted into the positioning groove to place the cover plate and the motor bracket in the same center of a circle.

[0008] Furthermore, the positioning groove is a long strip hole, and the height of the positioning member protruding from the end face of the motor bracket is greater than the thickness of the cover plate. When the motor bracket and the cover plate are rotated from a loose state to a locked state, the positioning member can move freely in the positioning groove.

[0009] Furthermore, the first slot is a U-shaped notch provided on the edge of the cover plate, the first locking member includes a connecting portion and a limiting portion, one end of the connecting portion is connected to the motor bracket, and the other end extends in a direction away from the end face of the motor bracket, one end of the limiting portion is connected to the other end of the connecting portion, and the other end of the limiting portion extends along the circumference of the motor bracket, and the distance between the limiting portion and the end face of the motor bracket is greater than or equal to the thickness of the cover plate. When the motor bracket and the cover plate are in a locked state, the first slot of the cover plate is inserted into the locking member, and one end of the first slot along the circumferential direction of the cover plate abuts against the connection between the limiting portion and the connecting portion.

[0010] Furthermore, the bottom surface of the limiting portion close to the end surface of the motor bracket is an inclined surface, and the distance between the limiting portion and the end surface of the motor bracket gradually increases in a direction away from the connection between the limiting portion and the connecting portion.

[0011] Furthermore, the top of the second locking member is connected to the bottom surface of the cover, the bottom of the second locking member extends in a direction away from the cover, the bottom of the second locking member protrudes to form a protrusion, the shape of the second slot matches the shape of the protrusion, and when the motor bracket and the cover are in a locked state, the protrusion is embedded in the second slot.

[0012] Furthermore, the shape of the protrusion is an inverted right-angled trapezoid, and the shape of the second slot is an inverted right-angled trapezoid that matches the shape of the protrusion. When the motor bracket and the cover are in a locked state, the protrusion is embedded in the second slot, and the right-angled side of the protrusion is in contact with the right-angled side of the second slot.

[0013] Furthermore, the outer side wall of the second locking member extends downward away from the center direction of the cover plate. When the protrusion of the second locking member is engaged with the second slot, the outer side wall of the second locking member is in contact with the inner side surface of the tooth portion of the motor bracket.

[0014] Furthermore, the first direction is the same as the rotation direction of the rotor of the motor.

[0015] The present invention further provides a motor, comprising the connection structure between the motor bracket and the cover plate as described above.

[0016] To sum up, the connection structure between the motor bracket and the cover plate provided by the present invention is different from the conventional vertical extrusion cover plate connection form. For small-sized motors, since the motor bracket and the cover plate cannot be widened or enlarged in the vertical direction, in the solution of the present invention, the force surface is converted from the vertical direction to the horizontal direction, so that the cover plate and the motor bracket can be fixed in the horizontal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural diagram of a connection method between a motor bracket and a cover plate;

[0018] Figure 2a A schematic diagram of a connection structure between a motor bracket and a cover plate provided in one embodiment of the present invention;

[0019] Figure 2b A color diagram of the connection structure between the motor bracket and the cover plate provided in one embodiment of the present invention;

[0020] Figure 2c A side view of the connection structure between the motor bracket and the cover plate provided in one embodiment of the present invention;

[0021] Figure 3a A schematic diagram of the top structure of a cover plate provided in one embodiment of the present invention;

[0022] Figure 3b A schematic diagram of the bottom structure of a cover plate provided in one embodiment of the present invention;

[0023] Figure 3c A schematic side view of the cover plate provided in one embodiment of the present invention;

[0024] Figure 3d for Figure 3c A magnified schematic diagram of part C in FIG;

[0025] Figure 4 A schematic top view of the teeth of a motor bracket provided in one embodiment of the present invention;

[0026] Figure 5a A schematic structural diagram of a motor bracket provided in one embodiment of the present invention;

[0027] Figure 5b A schematic top view of the motor bracket according to an embodiment of the present invention;

[0028] Figure 5c for Figure 5b AA cross-sectional view;

[0029] Figure 5d for Figure 5c A magnified schematic diagram of part D in FIG.

[0030] Figure 6a A schematic diagram of the motor bracket and the cover plate in a loosened state according to an embodiment of the present invention;

[0031] Figure 6b for Figure 6a corresponding color schematic diagram;

[0032] Figure 7a A schematic diagram of the motor bracket and the cover plate in a locked state according to an embodiment of the present invention;

[0033] Figure 7b for Figure 7a BB cross-sectional view;

[0034] Figure 7c for Figure 7b A magnified schematic diagram of part E in FIG;

[0035] Figure 8 Schematic diagram of the structure of the first locking member of the motor bracket in one embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the cooperation between the first locking member and the second locking slot in one embodiment of the present invention;

[0037] Figure 10 FIG. 1 is a schematic diagram of the rotation of a motor rotor according to an embodiment of the present invention.

[0038] The description of the accompanying drawings is as follows:

[0039] 01-fastener; 02-notch slot; 10-cover; 20-motor bracket; 11-first slot; 12-second locking member; 13-positioning slot; 21-first locking member; 22-second slot; 23-tooth portion; 24-positioning member; 211-connecting portion; 212-limiting portion; 121-protruding portion; 122-outer wall; 231-inner side surface. DETAILED DESCRIPTION

[0040] The following will describe in more detail the connection structure between the motor bracket and the cover plate and the motor proposed in the present invention in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not to exact scale, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, “a plurality of” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0043] As shown in Figure 2 to Figure 9As shown, the present invention provides a connection structure between a motor bracket and a cover plate, wherein the edge of the cover plate 10 is provided with at least one first card groove 11, and the bottom surface of the cover plate close to the motor bracket is provided with at least one second locking member 12; the end surface of the motor bracket 20 close to the cover plate 10 is provided with a first locking member 21 matching the first card groove 11, and the tooth portion 23 of the motor bracket 20 is provided with a second card groove 22 matching the second locking member 12 on the top surface close to the cover plate 10; the connection state between the motor bracket 20 and the cover plate 10 includes a loose state and a locked state. When the cover plate 10 covers The first locking member 21 is engaged with the first slot 11, and the second locking member 12 is located in the gap between two adjacent teeth 23 of the motor bracket 20. The motor bracket 20 and the cover plate 10 are in a loosened state. When the motor bracket 20 and the cover plate 10 are in a loosened state and the cover plate 10 rotates along the first direction, the first locking member 21 cooperates with the first slot 11, and the second locking member 12 is engaged in the second slot 22. The motor bracket 20 and the cover plate 10 are in a locked state, and the cover plate 10 is fixed to the motor bracket 20.

[0044] Different from the conventional vertical extrusion cover connection, for small-sized motors, since the motor bracket and the cover cannot be widened or enlarged in the vertical direction, the solution of the present invention converts the force-bearing surface from the vertical direction to the horizontal direction, so that the cover and the motor bracket can be fixed in the horizontal direction. Specifically, the present invention converts the connection between the motor bracket 20 and the cover 10 into a rotational fit. When the cover 10 is covered on the motor bracket 20, the cover 10 is rotated so that the second locking member 12 is engaged with the second slot 22. The first locking member 21 cooperates with the first slot 11, which can limit the rotation of the cover 10 while limiting the movement of the cover 10 in the vertical direction, thereby fixing the cover 10 to the motor bracket 20.

[0045] Furthermore, the cover plate 10 is provided with a positioning groove 13, and the end surface of the motor bracket 20 adjacent to the cover plate 10 is provided with a positioning member 24 that matches the positioning groove 13. When the motor bracket 20 is connected to the cover plate 10, the positioning member 24 is inserted into the positioning groove 13 to place the cover plate 10 and the motor bracket 20 at the same center of a circle. By positioning the positioning member 24 and the positioning groove 13, the cover plate 10 can be guided to cover the motor bracket 20 in the correct posture. At this time, the cover plate 10 and the motor bracket 20 are at the same center of a circle. This facilitates the subsequent rotation of the cover plate 10 in the first direction, so that the cover plate 10 and the motor bracket 20 enter a locked state from a loose state.

[0046] Preferably, the width of the positioning groove 13 along the radial direction of the cover plate 10 is substantially equal to the thickness of the positioning member 24 along the radial direction of the cover plate 10. Thus, when the cover plate 10 is placed on the motor bracket 20 and the positioning member 24 enters the positioning groove 13, the concentricity between the cover plate 10 and the motor bracket 20 can be effectively ensured. The number of positioning members 24 can be multiple, and accordingly, the number of positioning grooves 13 can also be multiple.

[0047] As an implementation of the present invention, the positioning slot 13 can be shaped as an elongated hole, such as a waist-shaped hole, an elliptical hole, a rectangular hole, or other shapes. The height of the positioning member 24 protruding from the end surface of the motor bracket 20 is greater than the thickness of the cover plate 10. When the motor bracket 20 and the cover plate 10 are rotated from a loose state to a locked state, the positioning member 24 can move freely within the positioning slot 13. Designing the height of the positioning member 24 to be greater than the thickness of the cover plate 10 can better guide the cover plate 10 to cover the motor bracket 20. At the same time, because the cover plate 10 needs to rotate in the first direction to enter the locked state with the motor bracket 20, the positioning member 24 also moves within the positioning slot 13. Therefore, the positioning slot 13 does not restrict the movement of the positioning member 24 during this process. That is, when the motor bracket 20 and the cover plate 10 are rotated from the loose state to the locked state, the positioning member 24 can move freely within the positioning slot 13. Preferably, the circumferential length of the positioning groove 10 can be reasonably designed so that the positioning member 24 will not be blocked by the end of the positioning groove 10 during movement. Alternatively, the positioning member 24 can be designed as an inverted L-shape, so that the size of the portion of the positioning member 24 inside the positioning groove 10 is very small, thereby avoiding the positioning groove 10 restricting the movement of the positioning member 24.

[0048] Furthermore, the first slot 11 is a U-shaped notch opened on the edge of the cover plate 10, and the first locking member 21 includes a connecting portion 211 and a limiting portion 212, one end of the connecting portion 211 is connected to the motor bracket 20, and the other end extends in a direction away from the end face of the motor bracket 20, one end of the limiting portion 212 is connected to the other end of the connecting portion 211, and the other end of the limiting portion 212 extends along the circumferential direction of the motor bracket 20, and the distance between the limiting portion 212 and the end face of the motor bracket 20 is greater than or equal to the thickness of the cover plate 10. When the motor bracket 20 and the cover plate 10 are in a locked state, the first slot 11 of the cover plate 10 is snapped into the locking member 21, and one end of the first slot 11 along the circumferential direction of the cover plate 10 abuts against the connection between the limiting portion 212 and the connecting portion 211. In the solution of this embodiment, the shape of the first locking member 21 can be an inverted L-shape. When the cover 10 is just covered on the motor bracket 20 and is in a loose state, the first locking member 21 is located in the first slot 11. When the cover 10 is rotated so that the cover 10 and the motor bracket 20 are in a locked state, the first locking member 21 also moves relative to the first slot 11. In the locked state, the first slot 11 just abuts against the corner of the L-shaped first locking member 21, which is equivalent to limiting the cover 10 from continuing to rotate in the first direction. At the same time, in the locked state, the second locking member 12 is locked in the second slot 22, which will limit the cover 10 from rotating in the opposite direction (the rotation direction opposite to the first direction). In this way, the rotational movement of the cover 10 can be limited. On the other hand, in the locked state, the first slot 11 just abuts against the corner of the L-shaped first locking member 21, so that the limiting portion 212 will be located in the non-gap of the cover 10 at this time, that is, the projection of the limiting portion 212 is in the non-gap of the cover 10 at this time (basically not falling into the notch of the first slot 11), which is equivalent to the limiting portion 212 limiting the movement of the cover 10 in the vertical direction, so that the cover 10 can be fixed on the motor bracket 20 in the locked state.

[0049] Preferably, the connection between the limiting portion 212 and the connecting portion 211 is a right angle. In this way, in the locked state, the first latching slot 11 can abut against the right angle connection, thereby better limiting the rotational movement of the cover 10.

[0050] Furthermore, the top of the second locking member 12 is connected to the bottom surface of the cover 10, and the bottom of the second locking member 12 extends in a direction away from the cover 10. The bottom of the second locking member 12 protrudes to form a protrusion 121. The shape of the second slot 22 matches the shape of the protrusion 121. When the motor bracket 20 and the cover 10 are in a locked state, the protrusion 121 is embedded in the second slot 22. In an embodiment of the present invention, when the cover 10 and the motor bracket 20 are in a loosened state, the protrusion 121 of the second locking member 12 is located in the gap between two adjacent teeth 23 of the motor bracket 20; as the cover 10 rotates along the first direction, the protrusion 121 will move toward the direction of the second slot 22 opened on the tooth 23. Preferably, the protrusion 121 and the second slot 22 are connected by an interference fit, and the bottom surface of the limiting portion 212 close to the end face of the motor bracket 20 is an inclined surface. The distance between the limiting portion 212 and the motor bracket 20 gradually increases in the direction away from the connection between the limiting portion 212 and the connecting portion 211, wherein the distance between the connection between the limiting portion 212 and the connecting portion 211 and the motor bracket 20 is basically equal to the thickness of the cover 10. In this way, when the protrusion 121 moves toward the second slot 23, the protrusion 121 will squeeze the tooth portion 23 to move. During this process, the distance between the inclined surface of the limiting portion 212 and the cover plate 10 can be used as the extrusion amount of the interference fit between the protrusion 121 and the second slot 22. When the protrusion 121 is just embedded in the second slot 23, the connection between the limiting portion 212 and the connecting portion 211 is basically in contact with the cover plate 10, so that the limiting portion 212 can just press the cover plate 10, and the cover plate 10 is now in a locked state.

[0051] Preferably, the shape of the protrusion 121 is an inverted right-angled trapezoid, and the shape of the second slot 22 is an inverted right-angled trapezoid that matches the shape of the protrusion 121. When the motor bracket 20 and the cover 10 are in a locked state, the protrusion 121 is embedded in the second slot 22, and the right-angled side of the protrusion 121 (that is, the side where the height of the inverted right-angled trapezoid is located) is in contact with the right-angled side of the second slot 22. In this way, the rotational movement of the cover 10 in the reverse direction (the rotational direction opposite to the first direction) can be limited. Preferably, the direction in which the right-angled side of the protrusion 121 points to the hypotenuse is substantially consistent with the first direction, that is, when the cover 10 rotates in the first direction, the hypotenuse of the protrusion 121 first squeezes the tooth portion 23 and then engages with the second slot 22. In this way, in the locked state, the angle of the first locking member 21 restricts the cover 10 from continuing to rotate in the first direction, while the right-angled side of the protrusion 121 and the right-angled side of the second slot 22 engage to restrict the cover 10 from rotating in the opposite direction (the direction of rotation opposite to the first direction). At the same time, the protrusion 121 engages with the second slot 22, and the limiting portion 212 presses on the cover 10. The two cooperate to restrict the movement of the cover 10 in the vertical direction. In this way, a fixed connection between the cover 10 and the motor bracket 20 can be achieved in the locked state.

[0052] Of course, those skilled in the art will understand that the shape of the protrusion 121 of the present invention is not limited to the inverted right-angled trapezoid shape mentioned above, but can also be other shapes. For example, the protrusion 121 can be a cube with a certain elasticity, and the shape of the second slot 22 matches it. During the rotation of the cover 10, the protrusion 121 can also be embedded in the second slot 22 by squeezing, thereby limiting the rotational movement of the cover 10 in the opposite direction.

[0053] Preferably, the outer side wall 122 of the second locking member 12 extends downward away from the center direction of the cover plate 10. When the protrusion 121 of the second locking member 12 is engaged with the second slot 22, the outer side wall 122 of the second locking member 12 is in contact with the inner side surface 231 of the tooth portion 23 of the motor bracket 20. Figure 3d and Figure 4 As shown, when the cover 10 is rotated so that the cover 10 and the motor bracket 20 enter a locked state, the outer wall 122 of the second locking member 12 fits with the inner side surface 231 of the tooth portion 23, which can ensure that when the protrusion 121 is embedded in the second slot 22, no parts will be located in the position of the second slot 22, thereby preventing damage to parts such as the enameled wire during the embedding process.

[0054] Furthermore, the first direction in which the cover plate 10 rotates is the same as the rotation direction of the rotor of the motor.

[0055] After the cover plate 10 and the motor bracket 20 are assembled, the motor is moving, and there are two circumferential limits on the cover plate. The first is the mating limit between the limiting portion 212 and the connection portion 211 and the first slot 11 (rotation limit in the first direction), and the second is the mating limit between the protrusion 121 and the second slot 22 (rotation limit in the opposite direction). From the perspective of reliability, the cover plate 10 is more likely to be dislodged from the second position, that is, more likely to be dislodged from the opposite direction. Therefore, during the rotation of the rotor, the cover plate 10 should be prevented from being subjected to external forces in the opposite direction. Only when the rotor direction is the first direction will the stator and the bracket fixed to the stator be subjected to a repulsive force in the opposite direction, and the force on the cover plate will be in the first direction. Therefore, in the preferred embodiment of the present invention, the first direction of rotation of the cover plate 10 is the same as the direction of rotation of the rotor of the motor, for example, both are counterclockwise.

[0056] The present invention also provides a motor, comprising the above-mentioned connection structure between the motor bracket and the cover plate.

[0057] To sum up, the connection structure between the motor bracket and the cover plate provided by the present invention is different from the conventional vertical extrusion cover plate connection form. For small-sized motors, since the motor bracket and the cover plate cannot be widened or enlarged in the vertical direction, in the solution of the present invention, the force surface is converted from the vertical direction to the horizontal direction, so that the cover plate and the motor bracket can be fixed in the horizontal direction.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. Any person skilled in the art who, without departing from the scope of the present invention, makes any equivalent substitution, modification, or other changes to the technical solution and technical content disclosed in the present invention shall be deemed to be within the scope of the present invention and still fall within the scope of protection of the present invention.

Claims

1. A connection structure between a motor bracket and a cover plate, characterized in that: At least one first locking groove is formed on the edge of the cover plate, and at least one second locking member is provided on the bottom surface of the cover plate close to the motor bracket; The end surface of the motor bracket close to the cover is provided with a first locking piece matching the first locking groove, and the top surface of the tooth portion of the motor bracket close to the cover is provided with a second locking groove matching the second locking piece; The connection state between the motor bracket and the cover plate includes a loose state and a locked state. When the cover plate is closed on the motor bracket, the first locking member is located in the first slot, and the second locking member is located in the gap between two adjacent teeth of the motor bracket, and the motor bracket and the cover plate are in a loose state; When the motor bracket and the cover plate are in a loosened state and the cover plate rotates along a first direction, the first locking member cooperates with the first slot and the second locking member is engaged in the second slot, and the motor bracket and the cover plate are in a locked state, fixing the cover plate on the motor bracket.

2. The connection structure between the motor bracket and the cover plate according to claim 1, characterized in that: The cover plate is also provided with a positioning groove, and the end surface of the motor bracket close to the cover plate is also provided with a positioning piece matching the positioning groove. When the motor bracket is connected to the cover plate, the positioning piece is inserted into the positioning groove to place the cover plate and the motor bracket in the same center of a circle.

3. The connection structure between the motor bracket and the cover plate according to claim 2, characterized in that: The positioning groove is a long strip hole, and the height of the positioning member protruding from the end surface of the motor bracket is greater than the thickness of the cover plate. When the motor bracket and the cover plate are rotated from a loose state to a locked state, the positioning member can move freely in the positioning groove.

4. The connection structure between the motor bracket and the cover plate according to claim 1, characterized in that: The first card slot is a U-shaped notch provided on the edge of the cover plate, and the first locking member includes a connecting portion and a limiting portion, one end of the connecting portion is connected to the motor bracket, and the other end extends in a direction away from the end face of the motor bracket, one end of the limiting portion is connected to the other end of the connecting portion, and the other end of the limiting portion extends along the circumference of the motor bracket, and the distance between the limiting portion and the end face of the motor bracket is greater than or equal to the thickness of the cover plate. When the motor bracket and the cover plate are in a locked state, the first card slot of the cover plate is inserted into the locking member, and one end of the first card slot along the circumferential direction of the cover plate abuts against the connection between the limiting portion and the connecting portion.

5. The connection structure between the motor bracket and the cover plate according to claim 4, characterized in that: The bottom surface of the limiting portion close to the end surface of the motor bracket is an inclined surface, and the distance between the limiting portion and the end surface of the motor bracket gradually increases in a direction away from the connection between the limiting portion and the connecting portion.

6. The connection structure between the motor bracket and the cover plate according to claim 1, characterized in that: The top of the second locking member is connected to the bottom surface of the cover plate, and the bottom of the second locking member extends in a direction away from the cover plate. The bottom of the second locking member protrudes to form a protrusion, and the shape of the second slot matches the shape of the protrusion. When the motor bracket and the cover plate are in a locked state, the protrusion is embedded in the second slot.

7. The connection structure between the motor bracket and the cover plate according to claim 6, characterized in that: The shape of the protrusion is an inverted right-angled trapezoid, and the shape of the second slot is an inverted right-angled trapezoid that matches the shape of the protrusion. When the motor bracket and the cover are in a locked state, the protrusion is embedded in the second slot, and the right-angled side of the protrusion is in contact with the right-angled side of the second slot.

8. The connection structure between the motor bracket and the cover plate according to claim 6, characterized in that: The outer side wall of the second locking member extends downward away from the center direction of the cover plate. When the protrusion of the second locking member is engaged with the second slot, the outer side wall of the second locking member is in contact with the inner side surface of the tooth portion of the motor bracket.

9. The connection structure between the motor bracket and the cover plate according to claim 1, characterized in that: The first direction is the same as the rotation direction of the rotor of the motor.

10. A motor, characterized in that: It comprises the connection structure between the motor bracket and the cover plate as described in any one of claims 1 to 9.

Images